The _____ documents are the ones which the government has ordered to be kept secret.
A. classical
B. classified
C. classifiable
D. classificatory
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Please fill in the blank with ______ letters, that is, letters in their small forms.
A. capital
B. lowercase
C. uppercase
D. lower
Father ______ the value of hard work.
A. made an impression on me
B. impressed on me
C. gave an impression
D. left an impression
____ some animals came to live in the sea is not known.
A. Which
B. Since
C. Although
D. How
The view from the top was wonderful and our tiredness ____.
A. fell out
B. fell away
C. fell behind
D. fell down
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